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Publication numberUS2558616 A
Publication typeGrant
Publication dateJun 26, 1951
Filing dateNov 24, 1947
Priority dateNov 24, 1947
Publication numberUS 2558616 A, US 2558616A, US-A-2558616, US2558616 A, US2558616A
InventorsJohnson Reynold B
Original AssigneeIbm
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Impact marking device
US 2558616 A
Abstract  available in
Previous page
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Claims  available in
Description  (OCR text may contain errors)

June Z6,l 1951 v INVENTOR RB. L/O/l/VSO/V j BY ATTORNEY R. B. JOHNnSON IMPACT MARKING DEVICE Filed Nov. 24, 1947 aga@ Patented June 26, 1951 2,558,616 IMPACT MARKING DEVIC'E Reynold B. Johnson, Binghamton, N. Y., assignor to International Business Machines Corporation, New `lork, N. Y., a corporation of New York Application November 24, 1947, Serial No. 7s7`,752

1 Claim. l

This invention relates to an impact marking device for making impressions upon a card or other object. Among the objects of the invention is to provide an unitary marking instrument having provisions for the making of impressions of symbols representative of different numbers which may be read by a sensing instrument or needle.

Another object of the invention is to provide a manually operable impact marking device having provision for the selection of any one of a plurality of dies which are representative of different characters or symbols and whereby any selected symbol may be impressed upon a card or other object by the application of force to the device.

Other objects and uses of the invention will appear from a detail description of the same which constitutes features of construction and combinations of parts hereinafter described and claimed.

In the drawings,

Fig. 1 is a side view of a device embodying the principle of the present invention;

Fig. 2 is a longitudinal section of the impact producing portion of the device taken on line 2--2 of Fig. 1;

Fig. 3 is a detail of the marking portion of the device;

Fig. 4 is a side view of the marking wheel i1- lustrated in Fig. 3;

Fig. 5 illustrates a card which has been embossed by the use of the device; and

Fig. 6 is an enlarged View illustrating the manner in which impressions are made in the surface of a card.

The impact marking device of the present in- I vention has a movable hammer adapted Vto be subjected to the tension of a spring and automatically released therefrom for delivering a blow onto an anvil in the form of a plunger by which the force of impact is transmitted to a selected die of a marking device. The impact device I0 includes a casing comprising a tubular member Il which is fastened to one end of a sleeve I 2, and a cap I3 which is adjustably attached to the other end of the sleeve l2. The adjustable cap I3 is in threaded engagement with sleeve l2 so as to enable relative movement between the cap and the sleeve to adjust the initial tension in the power spring lli.

The tubular member il is bored to receive a plunger I5 which is adapted to slide axially with respect to the tubular member. A flange Iii on the plunger determines the most outward posi- 2 tion of the plunger. The plunger has a reduced portion Il which extends through a bushing I3. The bushing I8 is in threaded engagement with the tubular member Il and is provided with aV flange i9 which is seated against the inner end of the tubular member II as shown in Fig. 2. Intermediate the flange I6 of the plunger and the bushing I3 there is mounted a spring 2c which normally holds the plunger in extended relationship With respect to the casing, but permits the sleeve member Il to more fully encompass the plunger when the spring 20 is compressed during use of the device.

Within the sleeve I2 there is mounted a laterally movable block or spacing member 2l which is bored at its center to provide for the passage of the reduced portion Il of the plunger. The block 2| is normally held by a spring 22 in such position as to maintain the edge of its bore over a shoulder 23 at the inner end of the plunger l5, as shown in Fig. 2. Spring 22 is a cantilever spring and is secured at its fixed end to a hammer 2d by means of a screw 25.V The block 2| serves to space the hammer from the plunger so long as its under surface is in engagement with the shoulder 23 of the plunger.

'As force is applied between the casing and the plunger in opposition to the action of the springs, the hammer, spacing block and plunger are moved as a unit with respect to the casing. During such movement the power spring I4 is compressed and energy is stored therein until a cam surface on the spacing block 2l comes into contact with the shoulder 2B and causes the spacing block to be displaced laterally and to becomel relieved from engagement with the shoulder 23 of the plunger. Thereupon the hammer 2li is released to the action of the power spring It and the striking surface 21 thereof delivers a sharp blow to the anvil end 28 of the plunger.

The plunger I5 has secured to its lower end a marking device including a support 29 for a marking Wheel 30. The support 29 has a stem SI which is threaded for engagement with a threaded bore in the lower end of the plunger I5. The marking wheel 3l] is supported on a pin 32 which is carried by a pair of arms 33 and all which extend from the support 29. Pin is disposed at right angles to the plunger and preferably in the plane of the axis of the plunger.

In the embodiment of the invention described the periphery of the marking wheel is provided with ten tangential surfaces, each corresponding to one ordinal of a series of ten ordinals,

to Wit: zero and 1 to 9, inclusive. One surface is left plain and is representative of zero. The other nine surfaces bear symbols in the form of raised lines of dies with one line representing the digit 1 on one surface, two lines representing the digit 2 on the next surface, three lines representing the digit 3 on the next sur-- face, four lines representing the digit 4 on the next surface, ve lines representing the digit "5 on the next surface, and so on, with the successive surfaces having lines in numbers corresponding to the respective digits. The rst line of each die is preferably disposed in a common diametrical plane of the marking wheel so as to afford a manner for gauging the alignment of a series of impressions imparted by the die upon a card 36. in which the rst row of digits each have the 9, 5, 1 and 5 symbols impressed in the surface of the card and all of the symbols have the lines indicating the value of 1 in horizontal alignment.

Each of the dies representative of a givenordinal are selectable for placement in die-impressing position by rotating the marking wheel 30. In order to justify the position of the selected die on the axis of the plunger I5, a spring-pressed pin 37 is provided which is adapted to engage any one of the series of holes 38 on the side of the marking wheel. Pin 31 is supported from support 29 by a spring 39 which is fastened to the support by a screw 40.

lower ends of the legs are preferably providedwith cushions 44 of rubber or other deformable material. The arrangement of the legs and the disposition of the lower surfaces of the cushions are suchas to permit the high portions of the dies to rest upon or be supported just above the card or other object upon which impressions are to be made.

When the device is properly positioned over a card an impression is produced by the application of manual force to the casing for the purpose of causing relative sliding movement between the casing and the assembly comprising the plunger I5, hammer 24 and the spacing block 2| until the block is disengaged from the plunger, whereupon the power stored in the spring I4 is expended to drive the hammer against the anvil end of the plunger. The force of impact is transmitted directly to the marking wheel and die. The force of impact causes the die to impress This is illustrated in Fig. 5 Y

grooves 45, in number corresponding to the se- 4 lected die, into the surface of the card in the manner illustrated in Fig. 6. The device is particularly suited for making lineal impressions on the surface of a card which may be readily read by a sensing instrument, such as a needle, upon ypassage over the card.

What is claimed is:

In an impact marking device, the combination comprising a casing containing an axially movable plunger and hammer, a spring compressible within said casing and releasable for forcibly moving said hammer with respect to said casing, means for releasing said hammer to the action of said spring for delivering an impact blow to said plunger, embossing means comprising a rotatable Wheel mounted on a shaft and having its axis of rotation normal to the axis of said plunger, said wheel having a series of dies spaced circumferentially about its periphery, means fastened to said plunger for rigidly supporting said shaft from said plunger, means cooperating with said last-named means and said wheel for holding said wheel in an adjusted position with respect to said supporting means and plunger, a bracket carried by said supporting means, said bracket having legs extending to a plane just below the lower die of said embossing wheel for providing resilient support for said marking device in a position perpendicular to a surface to be marked with said lower die located slightly thereabove marked and to which said legs extend.


REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Great Britain Sept. 12, 1908

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Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2794387 *Mar 25, 1953Jun 4, 1957Victor Adding Machine CoPlaten impelling means in check writers
US3045593 *Nov 21, 1960Jul 24, 1962United Aircraft CorpBallot marker
US3205813 *Dec 27, 1962Sep 14, 1965Davenport Machine Tool CompanyIndicia rolling attachment in screw machines
US3490365 *Oct 18, 1967Jan 20, 1970Dennison Mfg CoPortable ticket printer
US3946664 *Nov 27, 1974Mar 30, 1976Allied Chemical CorporationPrinter to identify wound yarn packages being automatically doffed from winder
US4127063 *May 25, 1977Nov 28, 1978R.D.R. CompanyLeather marking tool
US4149462 *May 13, 1977Apr 17, 1979Kabushiki Kaisha Sato KenkyushoConstant pressure mechanism for printing operation of label printing machine
US4649820 *Nov 7, 1984Mar 17, 1987Vance David EHand held impact printer
US5010811 *Jun 30, 1989Apr 30, 1991Societe De Prospection Et D'inventions Techniques (S.P.I.T.)Marking device adapted for mounting on a fastener driving apparatus
US5201589 *Feb 14, 1990Apr 13, 1993Murata WiedemannMarking tool holder for a punch press
US20100263412 *Apr 15, 2009Oct 21, 2010Chieh Huang ChangLeather-marking method and its device
CN104203446A *Mar 12, 2013Dec 10, 2014通快机床两合公司Processing tool for processing sheet metal
U.S. Classification101/3.1
International ClassificationB44B5/00, B44B5/02
Cooperative ClassificationB44B5/026, B44B5/0061
European ClassificationB44B5/02D, B44B5/00D